Architecture and evaluation protocol for transformer-based visual object tracking in UAV applications

• URL: http://arxiv.org/abs/2603.03904v1
• Date: Wed, 04 Mar 2026 10:12:12 GMT
• Title: Architecture and evaluation protocol for transformer-based visual object tracking in UAV applications
• Authors: Augustin Borne, Pierre Notin, Christophe Hennequin, Sebastien Changey, Stephane Bazeille, Christophe Cudel, Franz Quint,
• Abstract summary: Existing visual trackers either lack robustness in complex scenarios or are too computationally demanding for real-time embedded use.<n>We propose an Modular Asynchronous Tracking Architecture (MATA) that combines a transformer-based tracker with an Extended Kalman Filter.<n>We introduce a hardware-independent, embedded oriented evaluation protocol and a new metric called Normalized time to Failure (NT2F) to quantify how long a tracker can sustain a tracking sequence without external help.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Object tracking from Unmanned Aerial Vehicles (UAVs) is challenged by platform dynamics, camera motion, and limited onboard resources. Existing visual trackers either lack robustness in complex scenarios or are too computationally demanding for real-time embedded use. We propose an Modular Asynchronous Tracking Architecture (MATA) that combines a transformer-based tracker with an Extended Kalman Filter, integrating ego-motion compensation from sparse optical flow and an object trajectory model. We further introduce a hardware-independent, embedded oriented evaluation protocol and a new metric called Normalized time to Failure (NT2F) to quantify how long a tracker can sustain a tracking sequence without external help. Experiments on UAV benchmarks, including an augmented UAV123 dataset with synthetic occlusions, show consistent improvements in Success and NT2F metrics across multiple tracking processing frequency. A ROS 2 implementation on a Nvidia Jetson AGX Orin confirms that the evaluation protocol more closely matches real-time performance on embedded systems.

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